Vertical greening systems(VGS)are promising green infrastructure(GI)techniques for addressing urban resilience issues,like mitigating high temperatures and air pollution.This research aims to develop a conceptual fram...Vertical greening systems(VGS)are promising green infrastructure(GI)techniques for addressing urban resilience issues,like mitigating high temperatures and air pollution.This research aims to develop a conceptual framework to help designers better understand the VGS’effects on buildings and urban areas,focusing on thermal performance and air quality improvement in hot,humid climates.The framework consists of three steps:(1)Identifying climate problems that hinder the improvement of built environment resilience in hot climates;(2)Selecting VGS as a type of GI that can enhance urban resilience;(3)Identifying the common key factors that impact both thermal performance and air quality while developing VGS at the urban and building scales.The results show that the framework can be customized to suit hot climate conditions.However,when applying VGS in built environment with specified climate conditions,the construction of VGS,greenery coverage ratio,plant species,facade orientation,and VGS formation have the most significant influences on their environmental performance.Additionally,the air gap between VGS and the facade has optimal performance in hot,humid climates.The paper concludes with some recommendations for future research and practice on VGSs in hot and humid climates.展开更多
Sustainability is one of the most-mentioned words from the UN seminars to local community meetings, it is the issue of the world. The emerging science of landscape ecology, is learning more and more about the importan...Sustainability is one of the most-mentioned words from the UN seminars to local community meetings, it is the issue of the world. The emerging science of landscape ecology, is learning more and more about the importance of the "linkage" that green infrastructure(GI) provides in maintaining and restoring ecological processes and the health of nature. The world has moved from the industrialization period to sustainability as a growing issue and answering the question of sustainability in different sectors and green infrastructure is trying to answer the request for sustainable infrastructure. Applying the concept and characteristics of green infrastructure is the infrastructural solution in design. This paper tries to see the origins and concepts of green infrastructure and the strong role of green infrastructure as a part of sustainable development.展开更多
Since 2014, China has been implementing the Sponge City Construction initiative, which represents an enormous and unprecedented effort by any government in the world for achieving urban sustainability. According to pr...Since 2014, China has been implementing the Sponge City Construction initiative, which represents an enormous and unprecedented effort by any government in the world for achieving urban sustainability. According to preliminary estimates, the total investment on the Sponge City Plan is roughly 100 to 150 million Yuan （RMB） （$15 to $22.5 million） average per square kilometer or 10 Trillion Yuan （RMB） （$1.5 Trillion） for the 657 cities nationwide. The Sponge City Plan （SCP） calls for the use of natural processes such as soil and vegetation as part of the urban runoff control strategy, which is similar to that of low impact development （LID） and green infrastructure （G1） practices being promoted in many parts of the world. The SCP includes as its goals not only effective urban flood control, but also rainwater harvest, water quality improvement and ecological restoration. So far, the SCP implementation has encountered-some barriers and challenges due to many factors. The present paper presents a review of those barriers and challenges, oftizrs discussions and recommendations on several technical aspects such as control goals and objectives; planning/design and construction of LID/GI practices; performance evaluation. Several key recommendations are proposed on Sponge City implementation strategy, Site-specific regulatory fi＇amework and technical gmdance, Product innovation and certification, LID/GI Project financing, LID/G1 profcssional training and certification, public outreach and education. It is expected that the successful implemen!atiun of the. SCP not only will bring about a sustainable, eco-friendly urbanization process in China, but also contribute enormously to the LID/Gl research and development with the vast amount of relevant data and experiences generated from the Sponge City construction projects.展开更多
文摘Vertical greening systems(VGS)are promising green infrastructure(GI)techniques for addressing urban resilience issues,like mitigating high temperatures and air pollution.This research aims to develop a conceptual framework to help designers better understand the VGS’effects on buildings and urban areas,focusing on thermal performance and air quality improvement in hot,humid climates.The framework consists of three steps:(1)Identifying climate problems that hinder the improvement of built environment resilience in hot climates;(2)Selecting VGS as a type of GI that can enhance urban resilience;(3)Identifying the common key factors that impact both thermal performance and air quality while developing VGS at the urban and building scales.The results show that the framework can be customized to suit hot climate conditions.However,when applying VGS in built environment with specified climate conditions,the construction of VGS,greenery coverage ratio,plant species,facade orientation,and VGS formation have the most significant influences on their environmental performance.Additionally,the air gap between VGS and the facade has optimal performance in hot,humid climates.The paper concludes with some recommendations for future research and practice on VGSs in hot and humid climates.
文摘Sustainability is one of the most-mentioned words from the UN seminars to local community meetings, it is the issue of the world. The emerging science of landscape ecology, is learning more and more about the importance of the "linkage" that green infrastructure(GI) provides in maintaining and restoring ecological processes and the health of nature. The world has moved from the industrialization period to sustainability as a growing issue and answering the question of sustainability in different sectors and green infrastructure is trying to answer the request for sustainable infrastructure. Applying the concept and characteristics of green infrastructure is the infrastructural solution in design. This paper tries to see the origins and concepts of green infrastructure and the strong role of green infrastructure as a part of sustainable development.
基金We gratefully acknowledge financial support from the Beijing Natural Science Foundation Project （No. 8161003）, Natural Science Foundation Project （No. 51278267）, and the National Water Pollution Control Special Project （No. 2011ZX07301-003）. Several points and the contents in the manuscript are discussed with many experts during 2016 International Low Impact Conference in Beijing.
文摘Since 2014, China has been implementing the Sponge City Construction initiative, which represents an enormous and unprecedented effort by any government in the world for achieving urban sustainability. According to preliminary estimates, the total investment on the Sponge City Plan is roughly 100 to 150 million Yuan （RMB） （$15 to $22.5 million） average per square kilometer or 10 Trillion Yuan （RMB） （$1.5 Trillion） for the 657 cities nationwide. The Sponge City Plan （SCP） calls for the use of natural processes such as soil and vegetation as part of the urban runoff control strategy, which is similar to that of low impact development （LID） and green infrastructure （G1） practices being promoted in many parts of the world. The SCP includes as its goals not only effective urban flood control, but also rainwater harvest, water quality improvement and ecological restoration. So far, the SCP implementation has encountered-some barriers and challenges due to many factors. The present paper presents a review of those barriers and challenges, oftizrs discussions and recommendations on several technical aspects such as control goals and objectives; planning/design and construction of LID/GI practices; performance evaluation. Several key recommendations are proposed on Sponge City implementation strategy, Site-specific regulatory fi＇amework and technical gmdance, Product innovation and certification, LID/GI Project financing, LID/G1 profcssional training and certification, public outreach and education. It is expected that the successful implemen!atiun of the. SCP not only will bring about a sustainable, eco-friendly urbanization process in China, but also contribute enormously to the LID/Gl research and development with the vast amount of relevant data and experiences generated from the Sponge City construction projects.
